This doesn't really work. By the time the driver or GPU could "know" that the frame is the same, it's already done a lot of the heavy lifting. As in, it has bas

This doesn't really work. By the time the driver or GPU could "know" that the frame is the same, it's already done a lot of the heavy lifting. As in, it has basically still rendered the next frame by this point. Actually writing the result to the framebuffer is not expensive. fwiw: The downvotes are not from me.